I have a brand new electric fuel pump that keeps running when the key is in the on position. It doesn't shut off when the pressure builds. I can't get the engine started either. It started and ran for about 2 minutes and then quit. Now nothing. I opened the bleeder on top of the fuel filter and nothing but diesel comes out. I have a Yanmar 2GMF. Any help would be appreciated.

I'm guessing that when you installed the pump you introduced air into the system and now need to bleed the injection pump and injectors. Consult your manual on how to do it, not difficult. I don't remember what engine it is, but if a Yanmar (and maybe others) close the seacock while spinning the engine to bleed it and open it immediately when it starts.

.... close the seacock while spinning the engine to bleed it and open it immediately when it starts....

This is good advice for any engine, anytime you may be cranking for an extended time without running (eg. more than 30 -40 seconds) whether to bleed the fuel system or simply just having a tough time getting the engine to catch.

I've had this happen when the pump isn't getting good flow to it from the tank, even if the pump itself is pushing the fuel out just fine. On my setup, there is a bulb pump between the tank and the electric pump, and a few good squeezes on it to pressurize the line ahead of the pump were enough to get it to shut off and start functioning normally again. Don't know if this will help in your situation or not, though... good luck!

Okay, here is the deal...I talked to a mechanic at our marina and he came aboard to diagnose the problem. The pump is supposed to run when the key is in the on position. My engine wouldn't start because it was drawing air from somewhere. After bleeding the system, it started and I let it run for a couple of hours, checking where it could possibly be getting air from. I finally found that it was the bleeder screw on the top of my fuel filter. The top of the filter was wet with diesel. I wiped it off and a few minutes later it was wet again. Ha! Well, I tightened the screw and it didn't tighten. It is stripped. Problem is, it is not the bleeder screw that is stripped. It is the filter body. My plan is to replace the filter body and I should be up and running. Any tricks to replacing this?

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register. Please enter your desired user name, your email address and other required details in the form below.Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.